Vodacom's Dissapointing Client Service

At this point i have had absolutely enough of vodacom. The dont care about their clients. And the people in their stores (sales and managers) are ablsolutely useless to help you sort out a problem,they just have a bunch of excuses. I have been to kollonade,Junction and Wonderpark. I have also called vodacom customer care with no success. They just refuse to help you sort out an issue that they caused by the way. I did an upgrade (which i also struggled with by the way) wich i specifically asked to stay in my budget,now my invoice is R600 more,the lady that helped me at wonderpark with this has many excuses now and after a back and forth admitted that its a mistake they overcharged me,they will log a request to fix it,till this day i still got no feedback on if it was fixed or an invoiece or anything. They alos refused me to return the phones or help me to take something more affordable. I tried everything,Vodacom just doesnt want to help their clients and they overcharge clients and then dont want to fix it. I will never take out a contract with vodacom ever in my life and will definitely not reccomend them to anyone i know..... Very dissapointed